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www.enudab.com Helena,W 677-472-0711 •Billings,MT 600-735-4489•Gasper,WY 888-235-8515 <br /> - asaryacW&=b .sync,IM Gillette,WY 866-606-7175•Rapid City,SD 888-672-1225•College Station,TX 888-690-2218 <br /> QA/QC Summary Report <br /> Prepared by Casper, WY Branch <br /> Client: Cotter Corporation Report Date: 06/13/14 <br /> Project: Schwartz-GW 5/21/14 S27511 Work Order: C14050681 <br /> Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Cual <br /> Method: E200.8 Analytical Run: ICPMS2-C_140612A <br /> Lab ID: ICV Initial Calibration Verification Standard 06/12/14 13:53 <br /> Arsenic 0.0486 mg/L 0.0010 97 90 110 <br /> Method: E200.8 Batch:41477 <br /> Lab ID: MB-41477 Method Blank Run: ICPMS2-C 140612A 06/13/14 03:09 <br /> Arsenic ND mg/L 0.0003 <br /> Lab ID: LCS3-41477 Laboratory Control Sample Run: ICPMS2-C_140612A 06/13/14 03:12 <br /> Arsenic 0.472 mg/L 0.0010 94 85 115 <br /> Lab ID: C14050653-003CMS3 Sample Matrix Spike Run: ICPMS2-C_140612A 06/13/14 03:24 <br /> Arsenic 0.481 mg/L 0.0030 95 70 130 <br /> Lab ID: C14050653-003CMSD Sample Matrix Spike Duplicate Run: ICPMS2-C_140612A 06/13/14 03:27 <br /> Arsenic 0.490 mg/L 0.0030 97 70 130 1.8 20 <br /> Qualifiers: <br /> RL-Analyte reporting limit. ND-Not detected at the reporting limit. <br /> MDC-Minimum detectable concentration <br /> Page 10 of 21 <br />